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Ch 13: Foundations of Magnetism

About This Chapter

10 Lessons in Chapter 13: Foundations of Magnetism
Test your knowledge with a 30-question chapter practice test
Event Horizon: Definition & Overview

1. Event Horizon: Definition & Overview

This lesson will explain the meaning of the term 'event horizon', and discuss the two main types: a black hole event horizon, and the observable universe event horizon. A short quiz will follow.

Gravitational Field: Definition & Formula

2. Gravitational Field: Definition & Formula

This lesson defines what a gravitational field is and some practical examples encountered in the real world. We also develop the equations governing the gravitational field and explain what the units of measurement mean.

Magnetic Poles: Definition & Shifts

3. Magnetic Poles: Definition & Shifts

You probably know that magnets have poles, labeled 'North' and 'South.' But do you know why? And did you know that the earth's magnetic poles are not permanent? You will learn about both topics in this lesson.

Magnetic Quantum Number: Definition & Example

4. Magnetic Quantum Number: Definition & Example

Electrons in an atom are found within shells. These shells are further divided into subshells, which are further divided into orbitals. In this lesson, we will discuss the magnetic quantum number, which tells us about the orbitals an electron occupies.

Magnetic Reversals: Overview

5. Magnetic Reversals: Overview

Everybody knows that a compass points north. But do you know why? And would you be surprised to learn that it might point south some day? You will learn about our planet's changeable magnetic field in this lesson.

What are Electromagnetic Waves: Definition & Types

6. What are Electromagnetic Waves: Definition & Types

Explore electromagnetic (EM) waves, their features and how they differ from other waves. Learn how EM waves are organized on a spectrum based on the amount of energy they produce, from radio waves to gamma rays.

What is a Magnet? - Definition & Examples

7. What is a Magnet? - Definition & Examples

In this lesson, you will learn what a magnet is and how it works at the atomic level. You'll also see how the earth's magnetic field works. A short quiz will follow.

What is an Electromagnet? - Definition, Uses & Parts

8. What is an Electromagnet? - Definition, Uses & Parts

In this lesson, you'll learn what an electromagnet is, how it is used in a few real-life situations, and the parts that make it up. A short quiz will follow.

What is Electromagnetic Radiation? - Wavelength, Spectrum & Energy

9. What is Electromagnetic Radiation? - Wavelength, Spectrum & Energy

Light, microwaves, X-rays, and cell phone transmissions are all examples of electromagnetic radiation. Read more about this fascinating, mostly invisible phenomenon that has been harnessed by humans for so many purposes. A quiz is included.

What is Solenoid? - Definition, Uses & Examples

10. What is Solenoid? - Definition, Uses & Examples

In this lesson, you will learn what a solenoid is, how it relates to electromagnets, and how it is used in a few real-life situations. A short quiz will follow.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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